Wisconsin
Zip Code Listings 2016

At 65,497.82 square miles, Wisconsin is the 23rd largest state in America. Administratively Wisconsin is divided into 190 cities and towns and 72 counties. The state's population in 2012 was 5,726,398 making it the 20th most populous state in America.

As of January 2014, the state has roughly 896 zip codes, which are listed below with the respective city, town, village or location name as well as the area code. The capital is Madison (2012 population: 233,209) and the largest city is Milwaukee (2010 population: 594,833).

Wisconsin Postal Codes: What Is The Zip Code For ...?By City | By Code

Why is zip code data on an environmental science site?
In 2002 I was working on a project that correlated pollution and income for zip codes across the United States. Visitors told me the data files were very useful so I left them on the site and now update the postal information on a periodic basis even though the focus of the site is conservation.